Excavator.



--AA. D. HADSEL.

EXCAVATOR. APPLICATION FILED MAY s, 1910. RBNBWBD JULY 12.|1911. l

Patented Jan. 23, 1912.

3 SHEETS-SHEET 1.

I MMM f "N A. D.. HADSEL.

BXcAvAToR. v APPLICATION FILED-'MAY 6, 1910. RENEWED JULY 12. 1911. 1,015,486.

Patented J an. 23, 1912.

mtlja@ Loi-saale.

srirrns PATENT euries. N

INAH D. Hausnr.; or nounanou'ron, rnnnsilvammnssrononiTotoaisznninteri.- vs'ron COMPANY, or rnrLAzonLPHIA, PENNSYLVANIA; it`cornurnsusure;l

EXCAVATOR.

- Specification of Letters Eatent.

Patented Jan. 23,1912.

IA'Applji'eationyfiled May' 6, 1910, Serial No. 559,788. 'Renewed July12, 1911. Serial No. 638,209.'

citizen ci the United States, residing. at

Dori."ancetlni`v in the countyl of Luzerneand i vState of Pennsylvania,have invented-a new' andyuseful Eucavator, of which the follow-,

'ing is a specification. v

chinos which, are known in the trade as dis-l tant power devices, andhas particular reiterence 'to a -novel construction of diggingand'carrying bucket together with certain i improvements in means ordevices 'for open -.a.t1ng the saine, all as Will Ybe hereinafter fullydescribed and claimed', and illustrated inthe accompai'iying drawings,in which Figure -1 is a planview of the bucket; Fig.

l2 is .a side View of the same;` Fig. 3 is a transverse vertical sectionon the lin'eB-B of Fig. 2 Fig. t is a View oi' the bucket showing thesame diagrainmatically in operation in full' lines,v the bucket beingcarried or transported in dash lines, and the same be'- ing dumped indot and dash lines; Fig. 5 is a plan View ofthe devices covered by Fig.`Il; Fig. G is a diagrammatic side elevation of a slightly modified'termoli bucket and a modified arrangement ci supporting and operatingmechanism; Fig. 7 is a like View of a similar form of bucket and. adiii'erentau rangement of'operating devices, andlig is a detailofcertain tripping mechanism hereinafter described.

Throughout the: `following detail description and on the several figuresofthe draw ings similar parts are referred to by likereferencecharacters.

Referring particularly to the detail Views,

the numeral 10 illustrates a cradle orframe,y

provided with a. front shaft 11'anda`rear shaft- 12 on which are mountedsupporting Wheels 13 maintained in rolling 4contact with track rails orcables 14 by means of shoes or rollers 15 mounted upon the cradle. Thetrack cables 14 are anchored at their rear end. at any suitable distantpoint, and are adapted to be tightened` by any-suitable mechanism so asto lift the'buclet clear of the ground for transportationand dumping ypurposes. The means herein shown Jfor the purpose of tightening thetrack vcables consistsof a pair of pulley blocks 16 to the upper onev of,which is Vconnected a cable 17 which is mounted upon a drum 18 underthe control of the engineer.

`The scoop portion 19 of the bucket is mounted Within the cradle 10 andis pivotcd-'thereto on pivots 20vnear its front end so that underordinary conditions as when Q l ,y under transportationthe body of thescoop Tnisinyention relates to excavatin ma.-v

will be carried in the position indicated in dash lines in Fig. 2, therear portion of the scoop being provided with one ormore hooks 21adapted to engage over the axle 12.

Oneor'moredraftbeams22 are rigidly con nected .in any,,siiitable mannerto the front portion of the scoop and hence bear ay certain-deniteangular relation tothedigging edge 2 3 thereof, the arrangement beingsuchthat the digging edge or Joints of the scoop will always be sure toig into'the earth when the bucket is loweredto filling position. Anysuitable means 'may be provided to prevent the scoop from digging tooAdeep or being overloaded, and to this end l have shown atl 24 a crossplate or member carried by the beams 22, which When the scoop becomesfilled will cause the same to be thrown out of digging position. lVhenthe scoop is being filled byv draft on the lropes 2.5 and beams 22, theexcess of dirt which` gathers in frontof vthe cutting edge 23, after thescoopV is full, Will form a hummock, which Vwill throw the cutting edgelout of cutting engagement by reason of the plate 24 bearing4 down uponand over 'said humrnock. @ne or more draft cables 25areconnected to theaforesaid beams 22 and extend thence forwardly over any suitabledirection pulleys-26 to any suitable form of power drum 27.

'AS indicated in rig'. 4 uiebucket win be' drawn'toward thepower stationby direct operation of the cables' 25 until it becomes loaded, at whichtime or immediately thereafter the supporting cables 14 will be tighterred to lift the same 'out of contact with the ground, and then thecables 25 will be slackened, permitting the scoop to assume., thecarrying positionv indicated in dash lines in Figs. 2 and 4. One orvmore tailI ropes 28 are connectedfto they rear portion ,of theybucket.' cradle 1 0 and extend thence rearwardly over any suitablylocated.'direction pulleys 29, thence forwardly to and over 'pulleys 30to another'fpower drum 31 with- ,in reach of the engineer; By operationof this last mentioned ldrum' the tail ropes 28 will cause the bucketand its load to be conveyed rearwardly over the point of deposit wherethe scoop may be tiltedby any suitable mechanism. The scoop may beprovided with an upwardly projecting tailpiece' 32 which may consist ofa pair of .plates secured to the framework of the scoop and convergingat their upper end where a roller may be mounted, said roller beingadapted to travel along a trip cable Sle'ai'ichored at one end andprovided upon the tail ropes 28 will cause the scoop atits other endwith a tension weight lSaid cable-34 may be provided with a stop vbutton36 adapted to be placed at any point where it is desired to tilt anddump the scoop.v Then the bucket and its load are drawn rearwardly thetailpiece will en'- gage the button. 364 and a continued pull to belifted and tilted as shown in dot and dash lines in Fig. 4. The scoopbeing pivoted. eccentrically it will automatically right to the loadingposition.

itself when permitted to go forwardly again The supporting and operatingdevices of ,this present invention are adapted for a 'greatliexibilityof use both as to adpistnient or sett-ing along the lines of theexcavation or transversely thereto. As shown in Figs.

'aforesaid sets of trucks, said motor being under the direct control ofthe engineer on the power station 37. Each pair of rails 39, or 39 andthe devices supported thereon aremounted upon trucks 41 movable parallel to the line of` excavation on track rails l l 42. Said movement ofthe trucks 4l may be effected by any suitable means either individuallyor together.

In Fig. `6 is shown an arrangement quite .analogous to thathereinbeforedescribed inthat the cradle 10 is supported upon track linesor cables 14 and is movable toward the power station by means of cables-25 for lilling and conveying purposes. The f power `mechanism, however,is mounted upon a barge 37 from which extends rear-v Wardly a boom 40which corresponds to the i aforesaidfanchor tower 40- to which the track.cables 'are Iconnected and over which the tail ropes 28 operate. TheVdumping is effcted -in thisform of the invention in a slightly differentmanner by the provision of a yoke 43 suitably arranged lso asl toengageover the tail-piece 32"of. the scoop. The yoke .by engagement with`the tail-piece will cause 'the scoop to tilt as indicated `in dottedlines in Fig. G upon permitting the draft cables 25 to slacken, and acontinued reverse movement of the bucket will cornpletely dump thecontents and cause the tail-piece 82 to automatically release itselffrom the yoke ready for a, succeeding operation.

In the form shown in Fig. 7 the construction and operation of the bucketare prac-- tically the same as in Fig. (3, 4but the power tower 37a isindicated as being substantially stationary and likewise the anchortower 40"- is lined on its own support.V

Figi 7 shows the manner of mounting and. supporting the yoke 43, thesame being shown as carried by a trolley 43 adjustable along the trackcables 14, and secured at; any desired position of adjustment by meansof a tail rope 43" which may be anchored at any suitable point on theadjacent tower.

l claim:

l. In an excavator, a cradle, a pair of` laterally spaced cables onwhich said cradle is inovably mounted, means to vary the tcnsionron saidcables, a scoop pivotcd neairits front edge in said cradle, means tolimit the downward pivotal. movement .of the scoop in the cradle, meansconnected to the scoop ,for the purpose of iilling the same and con-',veymg it with the cradle along the supporting cables, and means tocause the scoop to swing upwardly andy forwardly with respect to itspivotal connection with the cradle fordumping.

2. In an excavator, the combination of a cradle, means to support thecradle at varying elevations, a -scoop carried by the cradle, meanscarried by the scoop'to co7 operate with the cradle to limit thedownward movement of the scoop, draft. means rigidly secured to thescoop` and bearing thereto a tixed angular relation with respect to thecutting edge of the scoop, power means connected. to said draft meansfor4 the purpose of filling the scoop, a tailpiece rigidly secured toanother portion of the scoop, and means cooperating with said tail-piecefor the purpose of lifting the scoop to dump its contents.`

3. ln an excavator, the combination of a cradle comprising a pair ofsideframes and a pair of transverse axles, a pair of sup porting cables,`means to secure the cradle from displacement on saidr cables, ascooppivoted near its front edge on or within said' cradle, means connectedto the rear portion of the scoop and coperating with `one of said axles'to limit the swinging ii'ioveinent of the scoop, draft means con* nectedto the front'portion of the scoop,

Lola-ee e eipee-e fox dumplog purposes eonmember 'and momenmiy @top itsmove eri to he reel portion of the Scoop. In .fm excavator theeombmetlon of a wlth Tes )eet to he cradle. o 7 l l eoppoei? e ojec'lethereon, e s'ooop pivoted 6. In an excavator, the Combination of e 5 meeone emi in said cradle, means con suppor comprising a pail of laterally:o ed io the othe end of he scoop no spaced tracks, a. Cradle movablealong emol .EW ELS do Verd movement 1n the cradle,

imbpeoe rbdy connected to the scoop Cradle, means to limithe downwardswingupwedly tl'lerefrom. and ing movemen of the scoop, and means to imowen@ @pacedv @om 'he cradle supporting lift the scoop foi: dumpingpurpoees with moons and adapted to ooperete with said respect to thecradle, said dumping means i -oeoe o oauee the scoop to be iiftedlwthincluding 4:11 member projecting from the 35 im the cradle foy dumpingpurposes. scoop, a roley' mounted upon said sup'- :P531 en ergozweor,the combination of a porting tracks, and e bail pvoted to the supp-ort,o eradle movable dong said Suptrolley and adoped to engage said scoopporia e scoop pivoted to said cradle, means membe'., substamely as setfoh @oop Wh 'efspeot to the cradle, and l set my heed dump the scoopWhile n'mo'ton,

dwelling means including a rigid, ,1r upwardly from the scoopnWitnesees.' am membe spaced fl'om the slvlpportng I HARRY M. KURTZmoons and' adopted io engage said rigidi A. L, voolm.

Momie o. HAMEL ment, causing hefsooop to swing upwardly 25 tracks, ascoop pivoted near one end to said 30

